EL Flashing Cap It has no relation to the sound, even there is no sound, it will also flash just you press the "on" button. New Design Animated EL Flashing Cap Features:1.Material: 100% cotton.2.Colors available : black. And customized colors can be done.3.Size: free size, it is adjustable.4.Power supply: DC3V, 1*CR2032 coin battery.5.We have many attractive designs for your option.6.Any ...